Dish-washing machine.



No. 821,105. PATENTEI) MAY 22, 1906.

` 0. KI'IGHELL & 0. W. SWANSON.

DISH WASHING MACHINE.

APPLICATION FILED JUNE 17, 1905.

2 SHEETS-SHEET 1.

(3y Sm M5 600% di@ o. 821,105. PATENTED MAY 22, 1906. 0. KITCHELL & G. W. SWNSON.

DISH WASHING MACHINE. APPLICATION FILED .TUNE 17, 1905.

2 SHEETS-SHEET 2.

@w m 1MM@ @fm/w .0 WW. .wmhw p .H -pil UNITED STATES PATENT OFFICE.

OSCAR KITCHELL AND CARL W. .SI/VANSON, OF CHICAGO, ILLINOIS, ASSIGNORS, BY DIRECT yAND MESNE ASSIGNMENTS, TO SAID SWANSON, GEORGE W. POWERS, AND SHERMAN W. PRINCE, OF

CHICAGO, ILLINOIS.

Specification of Letters Patent.

rai-.enten May 22, 1906.

Application led .lune 17, 1905. Serial No. 265,639.

To tu wiz/0m it may concern:

Be it known that we, OsoARKrrcHELL and CARL W. SwANsoN, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im rovements in Dish-Washing Machines; an we hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form partv of this specification.

Our invention relates to improvementsdn dish-washing machines, and has among its salient objects toprovide a machine of the lcharacter' described which is simple in construction, easy of manufacture, compact in form, and eiiicient in operation. f

With a view to attaining these and other i objects and to provide a machine'of generally improved construction our invention consists in the features of improvement hereinafter more fully described, and specifically lset forth in the claims.

In the drawings, wherein we have. illustra'ted a practical embodiment of our invention, k,Eigure'l isa central longitudinal section through a machine. Fig. 2 is a transverse vertical section. Fig. 3 is an external side view. Fig. 4 is an exterior end view. Fig. 5 is a detall of a drivin mechanism, and Fig. is an enlarged detail o one ofthe bladewheels.

Throughout the drawin s like numerals of reference refer always to li e parts.

Referring now to the drawings, 10 indicates in general the shell of a machine7 comprising in generala casing-body, a cover completing the casing, and a suitable supporting-stand.

l1 indicates in general the casing-body, which is referably for convenience a roundbottomedpreceptacle having its sides divergently inclinedto afford maximum room within tlie casing at the top thereof and at its ends provided with circular recesses 12, adapted to receive the blade-Wheelshereinafter adverted to. A false-bottom structure 13 is preferably arranged within the receptacle 11 to provide near the ends thereof water-wells 14 14. 'Ihis refinement may, however, be omitted and the water-well ermitted to extend throughout the lengt of the casing.

wheel to form pairs. 'shaped and located that when the wheel is A suitable passage is preferably provided to effect communication between the water- Wells 14 14, and to this end a conduit member 15 is arran ed below the curved bottom of the receptac e, at one end opening, as at 16, into one wellV 14,and at its other end opening into a drain-pipe 1-7, which in turn is in open communication, as through the port 18, with the other well I4, Said drain-pipe is provided with a suitablevalve 19 for effecting the closure thereof to retain water in the wells. It will be understoodthat the receptacle 11 vis preferably supported upon suitable legs, as illustratively shown at 20. At opposite ends of the casing 11 are disposed blade-wheels 21 21 preferably similar in all respects and mounted each with its side t0- ward the dish-s ace therebetween, the wheels being preferab y mounted upon a common shaft 22, extending longitudinally of the machine through the dish-space.

Each wheel is preferably of smaller diameter at its outer or rear side thanat its inner or front side and may conveniently be of the shape shown in Fig. 1, the wheel being imperforately closed at its rear and about its periphery by a suitable wall 21",L and provided with two series of blades 2lbA of similar design, but oppositely disposed upon the Such blades are so rotated in either direction one or the other set of blades entering the water-well at .the lower side of the wheel will project the water upward and outward into the dish-space within the casing. V

The blade shape'herein shown we have found to be very advantageous, eachblade providing a radial portion nearest the center of the wheel, a portion substantially parallel to said radial portion, but offset therefrom, extending to the periphery of the wheel, and lva part connecting said two portions curved to a suitable compound curve to' form a sort of water-carrying pocket. A pair of opposing blades may belikened in shape to a tunin -fcrk.

t will be understood that the shaft 22 may' be driven in any suitable manner, and we `have shown the one end thereof projecting throu h a stufng-box 23 and rovided with a pu ey 24 to receive a powerellt.

v shall be in the form of a basket.

will be understood, however, that in lieu of the pulley 24 might be employed a handle 25, either associated directl with the shaft 22 as shown in Fig. 4, or t rough the intermediary of gearing 26, as shown in Fig. 5.

In the space intermediate the confronting open-front face of wheels 21, which space we term the dish-s ace, we provide a suitable receptacle for ishes, which may be variously constructed, but which we prefer 27 represents, specifically, such a basket of open-wire mesh suitably supported, as by the engagement of a flanged edge 27 of the basket, with supporting-rods 28v 28' extending across the casing adjacent the ends thereof. The said basket is provided in its bottom with an elevated ridge 27, suitably disposed and shaped to overlie the shaft 22 when the basket is in operative position in the casing. .To afford re uisite strength and provide a means for ho ding the dishes against slipping within the basket, we may, if desired, provide 1ongitudinal ribs Z8l along the bottom of the basket 27, said ribs being preferably of sheet metal properly formed up and apertured to permit free circulation of water therethrough.

For the reception of knives, forks, and like tableware we preferably provide, at one side of the casing, cleats 30, suitably disposed to form a rack, and We preferably shape the side of the basket adjacent thereto to accommo* date such cleats.

We preferably provide at a suitable point in the machine a fine screen to prevent the scraps, crumbs, nand like lrefuse hable to accumulate in dish-water from entering the wells 14, from which the wheels 21 draw their supply of Water. To this end we provide the fine-meshed screen or strainer 31, interposed between 'the false bottom 13 ofthe casing and the dish-receptacle 27. The screen 31 may be suitably braced, as by a surrounding frame 31, and supported in any convenient manner, -as upon rods 32. Preferably the screen 31 extends from side to side of the casing and from a point contiguous on'e wheel to the other. The cover 33 of the casing may be of any suitable configuration, but preferably has inclined portions converging from the sides, as shown at 33', and ribs or splashers 34, extending lengthwise and crosswise of the cover, are preferablyprovided therein. It will be understoodv that 1 the cover is referably hinged to the body of the receptac e, as shown at 35, and is associated with the casing in such manner as to make water-tight' joint therewith when closed.

We also prefer to provide in conjunction With4 ourdevice a means for spraying the dishes with water from extraneous sources to rinse the dishes, such means being herein shown as a pipe 36, extending along one side of the machine and opening thereinto by small aperture's 37, the said pipe 36 being capab of connection in any suitable manner, as

through a hose-coupling 38, with a suitable source of water-supply, illustrated in dotted lines in Fig. 4 as a faucet. l

The operation of our improved device convstructed as above described will be as follows: Dishes to be washed are placed in the receptacle 27, knives and like tableware being placed in the cleats 30 provided therefor. N ow water of suitable temperature is introduced into the receptacle until the water reaches substantially the level indicated in Fig. 1. N ow when power is applied to the shaft 22 to rotate the latter the wheels 21 are simultaneously rotated in like direction, dipwells 14. Consequently the water is carried upward by the pocket -like blades of the wheel and is. thrown upward' and outward in a sheet which appears to start at the surface ping their blades into the adjacent waterv of the water and extends fan-like to the top may of course be mixed with the water, or

a soap-bar may be placed in the casing -in such position as to be reached by the water. When now the dishes are thoroughly cleansed, the dish-water may be drawn off from the casing by o enirig the valve 19 in the waste-pipe, and t en the dishes may be rinsed by spraying the water into the casing through the spray-pipes 36 and apertures 37,. Preferably such rinsing-water should be very hot, and if allowed to run off the heat ofthe casing is found to uickly dry the dishes, so that' they need no land-wiping. When the washing and rinsing are completed, the casing is opened, and the basket containing the 'dishes may be lifted out without removing will be apparent that numerous changes- Inight be 'made in the specific construction of our device .Without departure from the spirit and scope thereof.

A Having thus described our invention, what we claim, and desire to secure by Letters Patent of the United States, is

IOO

IIO

1. In a dish-washing machine, the combination with a casing providing a dish-space,

and a water-space. at a lower level than the dish-space, of a rotatable blade-wheel within the casing and without the dish-space, disposed with its side toward the dish-space, and arranged to throw water into the dish-space.

2. In a dish-washing machine, a casing providing a dish-space, and a water-well, a blade-wheel having an open side, disposed within the casing with its openy side toward the dish-space, said wheel being arranged to dip into the water-well and ada ted to throw water from the well into the dis -space.I

3. In a machine of the character described, a casing providing a dish-spaceand a waterspace, a shaft extending throughout the casing and blade-wheels on said shaft at opposite ends of the casing, each arranged to throw water from the water-space'into the dish-space.

4. In a machine of the character described, a casinglproviding a dish-space and 'a waterspace t erebelow, a blade-wheel Within the casing arranged transversely of the casing with its .side toward the dish-space, vsaid wheel extending into. and out of the waterspace, and said wheel being arranged when rotated to throw water from the weIl upward and inward into the dish-space.

5. In a machine of the class described, a

y versely of the casing with its side toward the dish-space, extending into and 'without the water-space, and provided with a part closing its side away from the dish-space and a series of blades each comprising portions at different radial distances from the center of the wheel, dis osed in substantial parallelism, but out o alinement, and a curved portion connecting said substantially parallel portions.

6. In a machine of the class described, a casing providing a dish-space and a waterspaee, a blade-wheel within the casing arranged transversely thereof, to present its side toward the dish-space, and extending into and without the water-space, said wheel having its largest diameter o n the side adjacent ,the dish-space, and decreasing in diameter toward its other side, and being'closed throughout its smaller side and periphery, and said wheel being further provided with blades each comprising substantially parallel, non-aiming portions extending in a\generally radial direction, and curved portions connecting said non-alining straight portions.

7. In a machine of the character described,

a casing providing a dish-space and a wateri space, confronting blade-wheels each disposed with its side toward thel dish-space and arranged to throw water from ythe waterspace into the dish-space, andmoans for simultaneously driving said blade-wheels.

`8. In a machine of the character described, a casing providing a dish-space and a water-space, oppositely-disposed blade-wheels without the dish-space, arranged to present their sides toward the dish-space and adapted to throw water from the water-space into the dish-space, a shaft common to said wheels and means for rotatin the shaft;

9. 'In a machine of t e character described, a casin a false bottom inv said casing providing wel s at opposite ends thereof, wheels at opposite ends of the casing arranged transversely thereof each to present its side toward the center of the casing, each of said wheels being arranged to dip intothe well at its Aend of the lcasing and adapted to throw water from said well into the space intermediate the wheels, and means in said space intermediate the wheels for supporting dishes above the level of the water-well.

10. In a machine of the character described, a casing, a shaft extending through said casing, wheels mounted upon opposite ends of said shaft and disposed to throw water from the bottom of the easing into the space between said wheels, and means for supporting dishes in the space between said wheels above the bottom of the casing, comprising a bottom member having an elevated portion adapted to straddle the wheel-driving'shaft.

11. In a machine of the character de-v scribed, a casing providing a dish-space, l

wheels within thel casing for throwing water from the bottom of said casino into said dishspace, and means for su )pIying a watersp'ray to the interior of said casing independent of and in addition to said wheels.

12. In a machine of the class described, the combination with a casing of wheels ar 'ranged therein, adapted to throw water from the bottom of the casing upon the dishes, and a sprayer 36, arranged at the top of the easing and adapted to be connected with an extraneous source of water-supply.

13. In a machine ofl the class described, the casing 11, the wheels 27 and the top 33 provided with the splash-ribs 34, substantially as described.

14. In a machine of the class described, a casing provided at its end with recesses 12 opening into the interior of the casing, wheels disposed in said recesses with their sides confronting each other, means for driving wheels simultaneously, and means for supporting said .dishes between the wheels above the level of the water into which said wheels dip, substantially as described.

In testimony that we claim the foregoing as our own we ailix our signatures in presence of two witnesses. V

OSCAR KITCIIELL. CARL W. SWANSON. In presence of- FORE BAIN, GEORGE T. MAY, Jr.

lIO

IIS 

